Starting a family

Long story short, our parents died 4 years ago in a car crash with 5 other cars and several others also died in the same accident. That left me and my sister Patty 23 alone together, I'm Dennis 25 and as far as we know have no other close family as bot sets of grandparents have also passed away. Our parents were in their thirties when they us and had no siblings of their own. Having not been good students, university wasn't for us. We both had jobs that weren't career based and were dead end at best. With the passing of our parents we got the home and everything else. Patty likes gardening and saw a plant nursery up for sale and decided it would be a better career than she already had. I wasn't against the idea and we sold up everything and purchased the nursery. Working together all the time and doing long hours, Patty was right and we started to get more clients and the nursery started to improve a lot. With not much spare time and unable to date anyone, I started to restless. Masturbating myself had lost its appeal and when Patty caught me cock in hand, I asked her to help me get off. Telling her I wasn't getting anywhere by myself. Patty decided to help and pulled off and gave me some visual incentive by showing her tits. Over the following weeks this became a regular thing for us. Then during the lockdown due to the pandemic, I asked her for a fuck. Not expecting to agree, but to get to see her reaction. To my great surprise she did agree and we fucked for the first, with the instruction from not to cum inside her. But I got carried away fucking her and pulled out too late. She was very happy, but she said if I couldn't what she wanted no sex. The next day we fucked again and I did pull out in time, Patty wasn't to concerned by me leaving my sperm inside her. As we had heard that people have to to try for months and we thought the odds were in our favor. We were wrong, Patty got pregnant and we debated getting rid of it or keeping it. Unable to make up our minds of course to take. We decided if the baby was healthy we would have it and if not terminate it. All tests showed nothing wrong and so baby Ruth after our mother was born in March. We sleep together every night and act as man and wife, Patty has also decided to have more children and I'm happy to help. Patty wears our mother's wedding rings now also and has Ruth isn't far away from her at the nursery while we working.